http://ronk2i5vgkone6erhu6yjezkq3ingehtzpifxuzlpqq6tfxxwf7iz7qd.onion/indexmain.php
According to an account shared (but since deleted) by a user, the registration workflow for new customers included a confirmation email. This is inherently problematic for a Tor-hidden service, because email traffic traverses the regular (clearnet) internet.